15 Best Dandruff Shampoos in 2020 for Itchy, Flaking Scalps

Choosing the best dandruff shampoo traditionally conjures up visions of medicated, nose-wrinkling potions that are not that fun to shop for—or use. Dandruff can be annoying even in the mildest cases, but especially when its symptoms include an itchy, dry scalp, irritation, and flakes that seem to get over every article of dark clothing you own. 

According to Carlos Wesley, M.D., a cosmetic surgeon and hair-loss specialist in New York City, dandruff is caused by “an overproduction of oil” or “increase in normal yeasts” on your scalp. The oil blocks dead skin cells from shedding, and in turn these cells become more apparent—hence the flakes. The good news is you can usually treat dandruff—or seborrheic dermatitis as its scientifically called—with over-the-counter products. A specially formulated shampoo goes a long way in getting those familiar symptoms of flaking and itching under control. And thanks to the innovation of haircare brands, these formulas are now a lot more appealing than they were in the past.

Whether you're looking for a no-frills formula or want something that comes with additional hair benefits, there are a few basic ingredients to look for. Wesley recommends starting with anti-fungals like pyrithione zinc or selenium disulfide, which should work within several weeks of use. Long-term, you can also opt for a slow and steady approach with anti-inflammatory and antimicrobial botanicals, like rosemary or lavender oil. Salicylic acid (the same one powering your blemish-clearing face wash) is also a derm-approved option for regulating the turnover of the skin cells on your scalp. 

Whichever one you choose, you probably want the formula that works as quickly and noticeably as possible. With that in mind, we trawled online reviews to find out which of the best dandruff shampoos deliver on their promised results. Below, 15 picks worth stocking up on.

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